Effect: Performer is seen holding a length of rope outstretched between his hands. A knot is visible in the center of the rope. The performer blows on the knot and it falls to the floor. Again the performer blows on the rope and a knot visibly appears on the center of the rope! The appearance of the knot is lightning fast! This is one of the most visual effects I have ever seen! Quick reset, can be performed close up or on stage. I can't say enough about this item. This is something that you will use! Made in USA